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    Archives

    The Research archive provides access to all Research articles published in past issues of Communications of the ACM.

    September 2020


    From Communications of the ACM

    Computing Value of Spatiotemporal Information

    Computing Value of Spatiotemporal Information

    We investigate the intrinsic value of location data in the context of strong privacy, where location information is only available from end users via purchase.

    Heba Aly, John Krumm, Gireeja Ranade, Eric Horvitz | September 2020

    From Communications of the ACM

    Technical Perspective: Progress in Spatial Computing for Flood Prediction

    There are few algorithms for multi-flow graphs beyond flow accumulation. The authors of "Flood-Risk Analysis on Terrains" take a big step to fill this knowledge gap.

    Shashi Shekhar | September 2020

    From Communications of the ACM

    Flood-Risk Analysis on Terrains

    Flood-Risk Analysis on Terrains

    In this paper, we study a number of flood-risk related problems, give an overview of efficient algorithms for them, as well as explore the efficacy and efficiency of these algorithms on real terrains.

    Aaron Lowe, Pankaj K. Agarwal, Mathias Rav | September 2020

    From Communications of the ACM

    Technical Perspective: Computing the Value of Location Data

    "Computing Value of Spatiotemporal Information," by Heba Aly et al., describes a technique for computing the monetary value of a person's location data for a potential geo-marketplace.

    Cyrus Shahabi | September 2020